Valve for pneumatic tires.



No. 693,994. f v Patentwrw; 25,. |992. c. s. mmn 9 abc. rmLLlps'. VALVE FOR lPEUITII TIRES.

(Appliontion led July 12, 1901.)

UNITED STATES PATENT OFFICE.

CHARLES R. BARRETT AND ELWOOD C. PHILLIPS, OF CHICAGO, ILLINOIS.

VALVE FOR PNEUMATIC TIRES.

SPECIFICATION feimng part Of Letters Patent N0. 693,991, dated February 25, 1902.

Application filed July l2, 1901.

To all whom it may concern:

Be it known that we, GHARLEs R. BARRETT and ELwooD G. PHILLIPS, citizens of the United States, and residents of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Valves for Pneumatic Tires, of which the following is a specification.

This invention relates to that type of valves for pneumatic tires in which a tubular metallic valve-casing containing an outwardly-closing check-valve has connection with the pneumatic tire by a flexible hollow stem, and which valve-casing is adapted for connection with 'an air-pump to inflate the tire. The object ot' the present improvement is to provide a sim ple, convenient, and eective 'attachment or connection between the valve- 'casing and the flexible hollow stern which is capable of a very rapid and economical formation in the operation of connecting said members together and which in addition affords a strong and intimate connection of the parts against any liability to leakage during continuedvuse, all as will hereinafter more fully appear and be more particularly pointed out in the claims. We attain such objects by the construction and arrangementof parts illustrated in the accompanying drawings, in Which- Figure l is a side elevation of the valvecasing and the flexible attaching-nipple of a pneumatic tire with the present invention applied. Fig. 2 is a sectional elevation of .flexible attaching-nipple, consisting of the usual enIIg attaching-disk 2 at its inner end, by which it is attached to the pneumatic tire in the usual manner, and a cylindrical neck 3, which extends away from the tire, so as to be adapted to project through the sup- Serial No. 67,949. (No model.)

porting-rim of such tire, as usual in the presenttype of pneumatic-tired wheels.

4 is the tubular valve-casing, containing an inwardly-opening check-valve of any usual and approved construction. Such valve-casing is adapted to t the bore of the cylindrical neck 3 of the flexible attaching-nipple 1 and is providedwith the usual circumferential gores 5 for effecting a more extended surface connection between the respective parts.

6 is the clamping-collar of the present invention, which fits upon the outside of the kcylindrical neck 3 of the attaching-nipple and is adapted to clamp the same 'against the valve-casing to effect a substantial and airtight connection between the two parts, and to this end said clamping-collar is formed with internal beads or flanges 7 at its respective ends and with a spiral indentation or groove 8, which extends from end to end of the sleeve, as illustrated in Figs. l and 2 of the drawings.

In the practical application of the present invention a plain cylindrical sleeve 6, as illustrated in Fig-3, is slipped over the cylindrical neck 3 of the attaching-nipple l, the valve-casing having been previously introduced into place, or subsequently if found most convenient. With the three parts in proper relative position a beading-machine will be employed to bead down the respective beads or flanges 7, after which the same niachine will be utilized to `chase the spiral indentation or groove 8 in the sleeve and complete the fastening of the parts together.

The present invention is intended to afford a simple, substantial, ,and air-tight attachment of parts, which is capable of ready and rapid achievement by machinery and afford an inexpensive substitute for the costly yet very efficient hand-wound Wire attachmentr heretofore generally employed in the bicycle trade.

Having thus fully described our said invention, what we claim as new, and desire to secure by Letters Patent, is

l. The combination with the elongated outwardly-projecting flexible attaching-neck of a pneumatic tire, of a valve-casing fitting the bore of said neck, and a clamping-collar fitting outside said attaching-neck, and pro- IOO vided with inturned anges or beads at its respective ends, substantially as set forth.

2. The combination with the elongated outwardly-projecting exibie attaching-neck of a pneumatic tire, of a valve-casing iitting the bore of said neck, and a clamping-collar fitting outside said attaching-neck, and provided With indentations or grooves in its sui'- face, substantially as set forth.

3. The combination with the elongated outwardly-projecting exible attaching-neck of a pneumatic tire, of a valve-casing fitting the bore of said neck, and a clamping-collar fitting outside said attaching-neck, and provided With spiraliy-arranged indentations oi' grooves in its surface, substantially as set forth.

CHARLES R. BARRETT. ELVOOD C. PHILLIPS.

In presence of- ROBERT BURNS, HENRY A. Noun. 

